Turrialba
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Soumissions récentes
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Chemistry of Brazilian green coffee and the quality of the beverage. III. Soluble proteins
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1974-07)Amostras de café arábica beneficiado (var. ´ Mundo Novo´) colhidas no mesmo ano em diferentes regiões do Estado de São Paulo e Minas Gerais, Brasil, foram classificadas quanto à qualidade da bebida por provadores profissionais ... -
Transmisión mecánica y algunas propiedades físicas del mosaico de Malvaviscus arboreus
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1974-07)A serious disease of Malvaviscus arboreus in Sao Paulo, Brazil is reported. The disease is characterized by a systemic mottling and unwrinkling of the leaves of this ornamental plant. This disease proved to be caused by ... -
Avaliação das necessidades hídricas de uma cultura de gladíolos através de métodos climatológicos
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1974-07)Water requirements for gladioli was studied by means of field experiments in which water was supplied by the furrow irrigation method. Climatological methods were used to evaluate the water need of this crop. Good trials ... -
Pulpa y pergamino de café. VIII. Estudios básicos sobre la deshidratación de la pulpa de café
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1974-07)The drying curves obtained for coffee pulp indicated that pulp is an easy-to-dry material.It's moisture content was reduced from 85 to 6 per cent during the constant rate drying period. Experiments using the Van Arsdel ... -
Determination of exchangeable cations and cation exchange capacity (CEC) of recent volcanic ash soils and acid tropical soils containing amorphous materials
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1974-07)Se escribe un procedimiento para determinar los cationes intercambiables y la capacidad de cambio de cationes en suelos que tienen un alto contenido de materiales amorfos. El método se basa en la saturación de la muestra ... -
Reseña de libros: Turrialba (IICA), vol. 24(2)
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1974-04-01)Reseñas de distintos libros, escritas por distintos autores. Cada reseña explica de qué trata la obra, cómo está estructurada, qué temas aborda y aporta una crítica, en la que los autores especifican en qué puede mejorar ... -
Preparación de láminas delgadas de suelos arcillosos por impregnación con metacrilato de metilo
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1974-04-01)Methyl-metacrylate, a chemical of low vis cosity, easily penetrates in the smaller pores of clayey soils and polymerizes under the influence of gamma ra diations (1 Mrad) so that the impregnated soil becomes apt for ... -
Controle do gorgulho do fejao-de-corda, Callosobruchus maculatus (Fabr. 1792) (Col. Bruchidae), com brometo de metila
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1974-04-01)The curative action of methyl bromide for the control of Callosobruchus maculatus Fabr, in cowpea (Vigna sinensis Endi) was studied Samples of cowpea seed were treated 5-6, 10-11 and 20-21 days after egg laying Methyl ... -
Desenvolvimento da fase pupal do Chalcodermus bimaculatus Fiedler, em alguns tipos de solos com diferentes teores de umidae
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1974-04-01)Chalcodermus bimaculatus Fiedler in silt loom, sandy laam and sondy clay loam soils. In water percolated soil, with 2.61 1070 per cent, 351 12.40 per cent and 6.40 14 19 per cent humidity respectively, pupa deve-lopment ... -
Studies on the shootborer Hypsipyla grandella (Zeller). XXVIII. The comparative toxicity of aldicarb, carbofuran and the natural toxicant of Toona ciliata M. Roem var. australis to first instar larvae
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1974-04-01)El problema de establecer plantaciones de meliaceas en América Latina en la presencia del barrenador de los brotes, Hypsipyla grandella (Zeller) se discute en relación con sustancias tóxicas naturales y la liberación ...